回复：回复：vent noise

来源: 咖啡 于 2004-12-14 18:52:21 [] [博客] [旧帖] [给我悄悄话] 阅读数 : 0 (263 bytes)
回答: vent noise 由 vent_noise 于 2004-12-14 08:41:10

is there an air return in that heater room? if the air return is attached directly to the heater, it is noisy.

sometimes we put a box at the bottom, the noise bounced in that box (with sound insulation on the inside), it reduces much of the noice.

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